diff --git a/client/build.sh b/client/build.sh
index 9219e00..7aaa0a8 100755
--- a/client/build.sh
+++ b/client/build.sh
@@ -34,9 +34,9 @@ echo "export default epoxy;" >> pkg/epoxy-module-bundled.js
 AUTOGENERATED_TYPEDEFS=$(<"out/epoxy_client.d.ts")
 AUTOGENERATED_TYPEDEFS=${AUTOGENERATED_TYPEDEFS%%export class IntoUnderlyingByteSource*}
 echo "$AUTOGENERATED_TYPEDEFS" > pkg/epoxy-module-bundled.d.ts
-echo "}\nexport default function epoxy(maybe_memory?: WebAssembly.Memory): Promise<typeof wasm_bindgen>;" >> pkg/epoxy-module-bundled.d.ts
+echo -e "}\nexport default function epoxy(maybe_memory?: WebAssembly.Memory): Promise<typeof wasm_bindgen>;" >> pkg/epoxy-module-bundled.d.ts
 echo "$AUTOGENERATED_TYPEDEFS" > pkg/epoxy-bundled.d.ts
-echo "}\ndeclare function epoxy(maybe_memory?: WebAssembly.Memory): Promise<typeof wasm_bindgen>;" >> pkg/epoxy-bundled.d.ts
+echo -e "}\ndeclare function epoxy(maybe_memory?: WebAssembly.Memory): Promise<typeof wasm_bindgen>;" >> pkg/epoxy-bundled.d.ts
 
 cp out/epoxy_client.d.ts pkg/epoxy.d.ts
 cp out/epoxy_client_bg.wasm pkg/epoxy.wasm